Harrow attachment for cultivators



l April 7, 1925.

v. L. BRANSON' rTARRow ATTACHMENT Foa cULTTvAToRs Filed March 2e. 1923 2 sheets-sheet 1 a0 nunnnnnnnlnnnnunnnnununnnpnnnnunnnununnnnuun /5 VUT VZW Wmv-1%,

L Elransnn April 7, 1925. `1,532,986

v. L.. BRANsoN HARROW ATTACHMENT FOR CULTIVATORS Filed March 26. l'192s 2 sheets-sheet 2 unnnnnnnn/nunnnunnnnnnnunnnnnnnunnnn nunnnnnnn v WwW-V v www Verne 1 ...E1ra1-Lsun.

gyn/vento@ Patented pr. 7, 1925.

UNITED .STATES PATENT :o1-"rica VERNE L. BRANSON, OF II'JIERXING'ITQN,` NEBRASKA.

HARROW .Ar'leoni/inne: ron cnnrrvii'rons.

Application fried March 26, i923. A'starai No. 627,806.

To all whom t may concern: l

Be it known thatI, VERNE LnBRANsoN,

a citizen of the United States, residing atl Lexington, in the county of Dawson and State of Nebraska, havefinvented certain new and useful mprovements `in a-Harrow Attachment foi' Cultivators, `of whichthe following is aspecification.A f

yThis invention relates'to improvements in harrow attachments 'for cu'ltivators.- 4

T he primary object of this invention is the provision of a novel arrangement --of :earth working teeth or members for harrows.

A further lobject Lof this `invention is the provisionof a barrow-attachment embodymembers so arranged that'tlie same may be most effectively used together for `weeding and earth working `-without`liability 'f of in- `jury to the plants being cultivated.

A further object of this invention is the provision of a novel tooth construction for` ing application, Serial No. 400,976,1l1ed August 23, 1920.

Frgaire 2 is a plan view of the earth working arrangement of the improved `harrovv attachment. f

Figure 3 is' a cross sectional view, taken -r`transversely througha -harrow supportingl beam, showing particularly the l' manner. in which teeth are supported'thereby.

Fit-iure a is a fravmentar cross sectional ,2L PJ view, taken longitudinally of the beam illustratcd inFigure 3, and showing the preferi'ed type of tooth construction for the harrow. I

lFigure 5 is a fragmentary cross sectional view,`showing a modified vform -of'toot-h construction.

, Figure 6 is a'plan view,-showing a `modi- 1 fied form of *harrow attachment vfor cul-- tivators.

Figure 7 isv a cross sectional view, taken transversely of"-a"' harrow supporting-beam y of the type :proved type. ing cooperating plowing 4and harrowingof attachment? illustrated `in Figure 6. i f

of illustration are shown the'preferred and -fmodiiied forms .of the' invention,1the Iletter Af. generally may designate a- `cultivator yof any approved type,:includingthe chassis B, and. iharrow `or earth Working attachment'. C.

:The chassis-Buis:'preferably ofany apv proved. construction, including .the frame ilO, *support-ing' atsits 'forward',end thefront running gear 11, lwhich includes ant aXle i12. 4At its. rear end,.theI frame 10 lpreferably. is

provided with r-runningggear '14 iof any Lapf The attachment- C may generally follow :the .type described in my copending applica-` tion above referred to, and" may linc-lude'the Iside :beams 15 and 16, which-arevpivotafllyv 4 connected at their .forwardfzendsto the spindle endsof the a-Xle 12,-. as to: vpermit vertical movement of said beams. Intermediate their ends, said Abeams `15 and .-16 transversely support ay plowvbeam. 18, vas bysocket meinbers 19 which 'are secured as `by "bolts l20y to the inside surfaces :of said beams 15S-,and 16.

`This beam 18-may'be1of any' approved type,

4and .preferably includes a plurality fof openzings `2&thereinv adapted to :receivev the-supportingl structures' of a series of disc zplows '25, Awhichare preferably arranged in. vpairs with the forward vends of eachpairmost proximately positioned and gradually `ldivverging .towardt-he rear yends of the same; the `space 4intermediate 'each' pair being such .as to accommodate ythe rows'iof plants .there- 'between to vadjustably work the soil: adjacent .the lplants without injuring the plants themselves. As is illustrated in Figures "2 :and 6,

. it. :is preferred .that four rpairs :of .plows' 25 be provided, 'so' 'that ,the improved' cultivator 'e is adaptedv for: simultaneously. .workingvfour rows.ofiplantaascanA well be understood by thoseskilled. imagricultural. pursuits.

The attachment@ furthermore includes '20. :These 'pivotal i connections .ofy the. side arms 30' and` .31 may befadjustab'le along the beams, 15 and 16. The lowerfe'nds oftfthe arms 30 and Bl'rotatably! supportthe cylin-l drical shaped harrowfb'eam 133, which'. is

preferably hollow. The rear.I ends of v the beams yor vside members15' and A416, arexpref- :In 'the drawings,I lwherein lfor the `purpose I armsfj'Of and 31,--whichv are respectively piv, ioted. at their forward ends intermediate the @ends of thewbeams 15 and 16, as'by-.thesbo-lts era-bly in Vlhorizontal planes, i aswat' `r` 15', "for:

reciprocably receiving therethroi'igh guide rods. 30 which are connected at their` oppo-V Zsite ends to they free swinging endstof the 30and 3l, spiral 'springs-30" are preferably k, provided, which are normally undercompression to urge theliarrow beam so that for soilv working purposes, as can well be` -understood.-` j 1 I, Referring to the arrangement 'ojfy teeth; .supported yby the hollow lcylindrical `barrow the teeth thereofl engage the ground surface beam 33,e it is `preferred thatinembers 35, of

, durable 'A metal rbe provided, shaving the op- The 'members'35 are. adapted for transverse disposition throughthebeam 33, asthrough.

diametrically Vopposed and aligning-.openJ ings 37,"so that the opposite ends thereof extend 'in exposed relation at diametrically' opposed points onv the beam..33.V During this assemblage,y thefmembelr isv prefyerably'of straight line formation, andthaty j. portiony 38 thereof within the bea-nil 33 is preferably straight. Afterthis relation be tweenthefmember V and thebeam 33 has "been assumed',y the j person assembling the. teeth upon the harrow beam 33 by striking'. or otherwisegimposing a. force upon the exposed ends 36 of thev member 35 bends the same' laterally in arcuation longitudinally` of the beam Thus tliefends BG-provide the 'preferred type of member 35 bot-hy arcuopposedteeth for the beam 33, and are-for ated toward the same end ofthe beam 33,

andincident to'this lateral arcuation the 40. member 35 will be maintained rigid withvthe beam k33 and prevented fromn displacement therefrom. From the foregoing it can be seen -zthat each member 35 provides, in fact,.two teeth'. :These members 35 are preferably arranged so that the teeth 36 thereof are.inclined with their pointed ends extending toward the pointed ends of an adjacent member 35. By

[this arrangement,the concaved sides'of the teeth 36fof each pair of members 35y are in facing relation, and which has been found #to be a very effective construction to facilitate the piilverizing and. breaking up of y-clods' ofearth4 and the like.

The members 315. are cooperatively placed )with respect yto the pairs of diseplows E25, between whichthe rowsof plants are received, sothat certain spaces 40 are prov'vided intermediate the conveXed sides of the teeth 36,2 between which the rows of plants."v are received during travel of thev cultivator; .these"`spaces, liO'of course, aligning vwith the spaces intermediatethe pairs of l plow discs .25, substantially as is illustrated inuFigures 2 .and'zof the drawings-`v The teeth 36 of the members .35 may be arranged ysubstantially in spiral formation around the cylindrical beam or shaft 33.

As illustrated in u Figure 5, a modified form of tooth member 35a may be provided, i.

are diametrically exposed at opposed points -upon `the shaft 33 aire pointed-and laterally arena-ted in oppositev directions longitudinallyof the shaft 33.k .n f v As illustrated i vrFigures Gand?, the improved Yharrow attachment may be used with "somewhat different arrangement of; teeth. VThis form preferably contemplates the' provposite ends 36 thereof pointed and tapered.;A

vision of a'solid barrow. shaft 50, rotatably supported at its endsby thefreeends kof the i attachment frame arms 30 andl. Sleeves .I

lshaft 50, set screws ,pre'ferabl'y being-.provided to lock'the beams 5l ina desired posi- 1 tion longitudinally of the vshaft 50. Each ofthe sleeves 5l preferably receives teeth SOA .55, which mayy be formedl rigid ltherewith,jas

that the next adjacent and diametrically'op-- j Diametrically opposed teeth 55;f

posedjpair of teeth 55 be laterally inclined toward the opposite end of the sleeve, so thatjthe teeth are substantially in thesame overlappingpointed arrangement as labove described for the preferred embodiment of thisinvention. The teeth uponv the sleeve of course may be placedy inspiralformation.:

With the type of barrowy illustrated in vFigures 6 and 7, the sleeves 5l may be placed at predetermined positions longitudinally of the shaft r50, and maintained in the proper spaced relation toprovide spaces between adjacent teeth of adjacent sleeves which cooperate with the spaces intermediate the pairs ofdisc plows 25, to receive the rows of plants therebetween. lt' is obvious from this construction that by'longitudinal shifting of the sleeves 25, the spacesintermediate the adjacent teeth of adjacent ysleeves may be varied, asmay also thespace intermediate the pairs of plows 25, so .tliatplants of various character,` and rows 'of various widths may be accommodated by .the harrow "1,20-

attachment. d From the foregoing description of this invention, itis apparent that an improved culmeV tivator device has been provided, the plow..l

and harrow features .of which are cooperative, and the'. novel teethv construction -of the harrow featurev providingv a rsimple, durable,

and eiiicient working arrangement..vr Various changes in the shape, sizeaiid arrangement of parts may bemade to the-form f of invention herein shown and described,

Without departing from the spirit of this invention or scope of the claims.

l claim:

l. In a device of the class described, the combination of a shaft, members transversely carried by said shaft so that opposite ends thereof extend from said shaft to provide teeth, said teeth being arranged in pairs curved longitudinally of said shaft toward each other and extending in overlapping relation to each other, certain spaces being provided upon said shaft for the reception of rows of plants therebetween as the harroW moves over land, the

teeth being so related to said spaces as to have convex sides thereof facing the saine.

2. In a device of the class described, the combination of a shaft, teeth extending radially of said shaft and arranged in pairs' and curved longitudinally of said shaftV towards each other and extending in overlapping relation to each other, spaces being provided along the shaft between certain of said pairs of teeth for the reception of rows of plants, the teeth being so related to thespaces as. to have convex sides facing the spaces. i

VERNE L. BRANSON. 

